Adsorption of Chitosan and Interaction with a Non-Ionic Surfactant on Silica

Bing Tao Liu; Remco Fokkink; Arie de Keizer

doi:10.4028/www.scientific.net/AMR.233-235.1398

Paper Titles

Two-Dimensional Modeling of the Pressure Swing Adsorption Process
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Study on Spectroscopic and Dyeing Characteristics of Curcumin on Poly(lactic acid) and Poly(ethylene terephthalate) Fabrics
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Preparation of Tamarind-Seed Thickener for Pigment Printing on Cotton
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A Simple Method for Property Integration
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Adsorption of Chitosan and Interaction with a Non-Ionic Surfactant on Silica
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Supercritical Carbon Dioxide Chelating-extraction of Trace Heavy Metal from Calcium Lactate
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Study on Leaching Process of Activation Bastnaesite by HCl Solution
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Formation and Stability of Polyelectrolyte Multilayers of Chitosan and Poly(acrylic acid)
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Application of a Novel Initiator on Acrylic Emulsion Polymerization
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Adsorption of Chitosan and Interaction with a Non-Ionic Surfactant on Silica

Abstract:

Optical reflectometry is applied as a tool for studying single and simultaneous adsorption of a carbohydrate, a nonionic surfactant, and a protein, For the nonionic surfactant poly(ethylene oxide) alkyl ether on a silica surface the adsorption process is fast and reversible, and the maximum adsorbed amount was 2.45 mg•m^-2. Also, the effect of pH on the adsorption of chitosan on silica, and its interaction with C₁₂EO₅have been studied. The maximum adsorbed amount was obtained for pH ≥6.8 (0.80 mg•m^-2). Changes in surface functionality upon adsorbing C₁₂EO₅ on a chitosan layer and the protein, bovine serum albumin, are reported. The results are discussed in terms of adsorption kinetics, adsorbed mass plateau values, and reversibility of layer formation.